Envelop.



H. M. SCHLOSS.

ENVELOP.

APPLICATION FILED MAY6.19I4.

Patented May 9,1916.

WITNESSES A TTORNEY HARRY M. SCI-ILOSS, OF JERSEY CITY, NEW JERSEY.

ENVELOP.

, Specification of Letters Patent.

Patented May 2, 1216 Application filed May 6, 1914. Serial No. 836,591.

To all whom it may concern:

Be it known that I, HARRY MARTIN Sci-moss, a citizen of the United States, and resident of Jersey City, Hudson county,

State of New J ersey, have invented certain new and useful Improvements in Envelops, of which the following is a specification.

This envelop is to be considered as a safety envelop,'one that will prevent the undue examination of the contents or the tampering therewith by an unauthorized person and my device is so constructed that were the envelop to be opened or tampered with the discovery thereof would be particularly easy. This envelop has a double flap and a double seal. The secondary sealing being so arranged that were the seal to be brokenby a knifeor to be steamed open, the surface or address-side of the envelop will indicate the breaking of the secondary seal.

The construction of my device and the advantages to be gained therefrom will be fully set forth as the specification progresses.

The following is what I consider the best 7 means of carrying out my invention and the accompany ng drawings form a part of this specification in which Figure 1. shows in plan an envelop with the secondary flap in position and the ordinary flap ready to be sealed. Fig. 2. shows the secondary flap in position for sealing, and Fig. 3. shows a blank from which the envelop is formed. Fig. 4. shows a front elevation of the envelop and the fracture discloses the operable location of the adhesive upon the inner or smaller flap.

Similar reference numerals indicate like parts in all the figures where they appear.

My envelop is formed of a body 1, provided with an ordinary flap 2 and side extensions 3 and 4, formed in the ordinary manner and of any ordinary proportions. The constructions of these parts and their functions are well understood to any one'fainiliar with envelops, so therefore, they will not require describing. From the lowermost edge of the envelop, a projection 5 is produced and this projection is formed integral with the body of the envelop. In the formation of the ordinary envelop this projection usually terminates about on the line indicated at 6 but in my envelop I continue it to form a diamond-shaped member as indicated at 7 and I produce a fold-line longitudinally through this diamond-shaped member as indicated at 8. I also produce a central perforation in the diamond-shaped member as indicated at 9 for the purpose that shall appear later.

In forming the envelop the projections 3 and 4; are folded inward and the projection 5 is folded inward and upward over the parts 3 and 4: and is sealed thereon, in the ordinary manner. The envelop is now ready for use and will be in the shape as indicated at Fig. 2. A letter or other mat ter is now inserted between the fiaps 2 and 10 and the gummed surfaces 11 and 12, which have been provided upon the flaps 2 and 10 respectively, are now moistened. The shorter flap 10 is now inturned and the longer flap 2 folded over the shorter flap and the whole pressed firmly into place. The shorter flap will now be found to be sealed to the interior of the address-side of the envelop and the longer flap will be sealed not only upon the exterior of the member 5, but also upon the exterior of the members 3 and 4. This double seal will efiectually prevent undue entry into the envelop. For, if the shorter flap 10 is forced away from the adjacent flat surface of the envelop by the use of a knife or similar article or steamed away in an ordinary manner it will disrupt or roughen the ad dress-side of the envelop, in such a manner and to such an extent as to be be readily discovered.

It will be observed that I have provided a perforation 9 at the base of the smaller fiap. This perforation will serve as a means by which the contents of the envelop may be readily discovered. This perforation, however, serves a further and more important function. Upon the inner side of the larger flap 2, and about adjacent to the position of the perforation 9 I may place a small spot of adhesive as indicated at 13.

This adhesive apparent through the perfora-- tion 9 may be dampened when the flaps 2 and 10 are prepared for sealing and now when the envelop is entirely sealed the adhesive- 13 will secure the letter in the envelop and to the larger flap 2. The breaking of this or any of the other seals will indicate that the envelop has been tampered with, and this adhesive 13 provides an extra sealing which; must be overcome When the letter is to be removed.

It is obvious that the shape and general dimensions of my envelop may bechanged at will and that it may be made to conform to any personal desires of the manufacturer by Letters Patent is:

1. An envelop provided with a plurality of flaps of different area each provided with a gummed line, said gummed lines being arranged adjacent to each other, a perforation through one said flap through which a portion of the contents of said envelop Copies of this patent may be obtained for ,will be exposed and a gummed spot upon said other flap and adapted to be secured to the contents of said envelop as herein set forth. 7

9,. An envelop having an inwardly foldable and perforated flap, the outer surface of which is gummed, and adapted to be secured to the inner surface of the addressed side, and an.out-wardly foldable flap the inner surface of which is gumlned and adapted to be engaged over said inwardly foldable flap, said second flap being provided with an additional adhesive surface adapted to operate through said perforation to engage the contents of the envelop for the purpose set forth.

Signed at New York city, New York,

this 27th day of April, 1914.

H. M. SCHLOSS.

Witnesses j G. E. STERRETTE,

ARTH R PHELPS MARR.

five cents each, by addressing'lthe Commissioner of Patents,

Washington, D. C. y 7 

